Fore and aft.

Exposure's Link Plus Front and Rear Light Combo combines a mid-strength, forward-facing light with a rear-facing light that's angled so that, while the front light is aimed at the road from a helmet or handlebar mount, the rear light is directed straight back to alert overtaking traffic to your presence. The CNC-machined alloy body is not only durable, but it also helps prolong battery and LED life by dissipating heat. When even that's not enough, Exposure's Internal Thermal Management (ITM) steps in to automatically adjust the beam strength in order to keep temperatures down and efficiency up.